摘要:
Olefinic interpolymer compositions comprising the olefinic interpolymer, residuals from a transition metal catalyst and boron containing activator package, and a charge dissipation modifier and methods for making them. The compositions have dissipation factors that are at least 50% less than the corresponding olefinic interpolymer compositions which have not been treated with charge dissipation modifiers. The compositions are useful in wire and cable applications.
摘要:
Thermoplastic polyolefin blends having improved resistance to fluids such as petroleum fuels after being painted with flexible coatings such as polyurethanes paints and the like are disclosed. These blends include a crystalline or semi-crystalline polyolefin such as polyethylene, polypropylene, or a copolymer of ethylene and a C3 to C10 olefin, and a multimodal elastomer of sequentially polymerized ethylene-&agr;-olefin monomers. The substantially crystalline polyolefin is present in an amount of 30 to 98 weight percent, while the multimodal elastomer, which is substantially amorphous, is present in an amount of about 2 to 70 weight percent. The blends may contain additional polymeric components, fillers and the like. In addition to increased paint adherence, higher weld-line strength, low temperature ductility and processability can be achieved.
摘要:
An ethylene/&agr;-olefin polymer blend is described comprising first and second ethylene/&agr;-olefin polymer components in which the ethylene content of the first component is at least 10 weight percent different than the ethylene content of the second component. These blends exhibit an improved combination of low temperature, pellet flow, compression set, melt strength and/or shape retention properties as compared to either component, or an ethylene/&agr;-olefin polymer blend of similar composition but in which the ethylene content of each component is substantially the same.
摘要:
Acrylate or methacrylate polymers, or copolymers of acrylates and/or methacrylates with other vinyl monomers, are blended in compositions with poly(phenylene ether), and/or with a poly(phenylene ether) concentrate containing poly(phenylene ether), polystyrene, a vinyl aromatic copolymer, polyamide, polycarbonate, polyester, poly(alkyl acrylate), and/or poly(alkyl methacrylate). The blended compositions may also optionally contain additional vinyl aromatic copolymer as a separate component, impact modifiers, thermoplastic molding materials including polycarbonate, polyester, polystyrene, polyolefin, polyamide, poly(vinyl chloride), polyurethane, polyacetal, and conventional additives such as dyes and pigments.
摘要:
A process of blow molding, and compositions useful in the process. The articles are blow molded from compositions formed from thermoplastic polymeric material, a fluorinated olefinic polymer or copolymer and, optionally, an elastomeric impact modifier.
摘要:
Carbonate polymers (PC) such as randomly branched carbonate polymers, linear carbonate polymers and blends thereof are blended with acrylonitrile-ethylene-propylene-diene rubber (EPDM)-styrene copolymers and MBS as impact modifiers. The MBS impact modifiers are located at the PC and the acrylonitrile-ethylene-propylene-diene rubber (EPDM)-styrene copolymer interphases or in the PC phase so that higher melt elasticity and better blow molding is achieved.
摘要:
A flame retardant, impact resistant carbonate polymer composition comprising a mixture of one or more carbonate polymers, an impact modifying quantity of a rubbery polymer containing residual ethylenic unsaturation, a fluorine containing polymer of the fibril forming type and a metal salt of an inorganic acid.
摘要:
Impact resistant polycarbonate blends, which may be extruded without pre-drying, are prepared from an aromatic polycarbonate, an aromatic polyester, and a polyalkyleneoxide rubber, and optionally, a grafted copolymer or mixture of grafted copolymers.
摘要:
A flame retardant, impact resistant carbonate polymer composition comprising a mixture of one or more carbonate polymers, an impact modifying quantity of a rubbery polymer containing residual ethylenic unsaturation and a fluorine containing polymer of the fibril forming type.
摘要:
Polycarbonate is admixed in compositions with poly(phenylene ether), and/or with a poly(phenylene ether) concentrate containing poly(phenylene ether), polystyrene, a vinyl aromatic copolymer, polyamide, polycarbonate, polyester, poly(alkyl acrylate), and/or poly(alkyl methacrylate). The blended compositions may also optionally contain additional vinyl aromatic copolymer as a separate component, impact modifiers, thermoplastic molding materials including polystyrene, polyolefin, polyamide, poly(vinyl chloride), polyurethane, polyacetal, and conventional additives such as dyes and pigments.